饮酒过量对脑、肝、心等脏器的损害已较清楚,但对呼吸系统的危害性并未受到重视。本文就饮酒对机体防御机制的影响及引起的常见肺部感染讨论如下: 防御因素:会厌关闭是防止吸入感染性物质进到下呼吸道的机械防御机制。而饮酒既可抑制会厌反射,又可损害咳嗽反射。酒精中毒时,因吸入口咽部肺炎球菌、G-杆菌和厌氧菌引起肺炎是很 Excessive drinking on the brain, liver, heart and other organs of the damage has been more clear, but the dangers of the respiratory system has not been given attention. This article discusses the effects of alcohol consumption on the defense mechanisms of the body and the common lung infections caused by them as follows: Defensive Factors: The epiglottic closure is a mechanical defense against inhalation of infectious agents into the lower respiratory tract. Alcohol consumption can inhibit epiglottis reflex, but also damage the cough reflex. Alcoholism, due to inhaled oropharyngeal pneumococcus, G-bacteria and anaerobic bacteria cause pneumonia is very